HarfBuzz text shaping engine
http://harfbuzz.github.io/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
142 lines
3.4 KiB
142 lines
3.4 KiB
/* |
|
* Copyright © 2011 Google, Inc. |
|
* |
|
* This is part of HarfBuzz, a text shaping library. |
|
* |
|
* Permission is hereby granted, without written agreement and without |
|
* license or royalty fees, to use, copy, modify, and distribute this |
|
* software and its documentation for any purpose, provided that the |
|
* above copyright notice and the following two paragraphs appear in |
|
* all copies of this software. |
|
* |
|
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
|
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
|
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
|
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
|
* DAMAGE. |
|
* |
|
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
|
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
|
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
|
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
|
* |
|
* Google Author(s): Behdad Esfahbod |
|
*/ |
|
|
|
#ifndef FACE_OPTIONS_HH |
|
#define FACE_OPTIONS_HH |
|
|
|
#include "options.hh" |
|
|
|
struct face_options_t |
|
{ |
|
~face_options_t () |
|
{ |
|
g_free (font_file); |
|
} |
|
|
|
void set_face (hb_face_t *face_) |
|
{ face = face_; } |
|
|
|
void add_options (option_parser_t *parser); |
|
|
|
void post_parse (GError **error); |
|
|
|
static struct cache_t |
|
{ |
|
~cache_t () |
|
{ |
|
g_free (font_path); |
|
hb_blob_destroy (blob); |
|
hb_face_destroy (face); |
|
} |
|
|
|
char *font_path = nullptr; |
|
hb_blob_t *blob = nullptr; |
|
unsigned face_index = (unsigned) -1; |
|
hb_face_t *face = nullptr; |
|
} cache; |
|
|
|
char *font_file = nullptr; |
|
unsigned face_index = 0; |
|
|
|
hb_blob_t *blob = nullptr; |
|
hb_face_t *face = nullptr; |
|
}; |
|
|
|
|
|
face_options_t::cache_t face_options_t::cache {}; |
|
|
|
void |
|
face_options_t::post_parse (GError **error) |
|
{ |
|
if (!font_file) |
|
{ |
|
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, |
|
"No font file set"); |
|
return; |
|
} |
|
|
|
assert (font_file); |
|
|
|
const char *font_path = font_file; |
|
|
|
if (0 == strcmp (font_path, "-")) |
|
{ |
|
#if defined(_WIN32) || defined(__CYGWIN__) |
|
setmode (fileno (stdin), O_BINARY); |
|
font_path = "STDIN"; |
|
#else |
|
font_path = "/dev/stdin"; |
|
#endif |
|
} |
|
|
|
if (!cache.font_path || 0 != strcmp (cache.font_path, font_path)) |
|
{ |
|
hb_blob_destroy (cache.blob); |
|
cache.blob = hb_blob_create_from_file_or_fail (font_path); |
|
|
|
free ((char *) cache.font_path); |
|
cache.font_path = g_strdup (font_path); |
|
|
|
if (!cache.blob) |
|
{ |
|
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_FAILED, |
|
"%s: Failed reading file", font_path); |
|
return; |
|
} |
|
|
|
hb_face_destroy (cache.face); |
|
cache.face = nullptr; |
|
cache.face_index = (unsigned) -1; |
|
} |
|
|
|
if (cache.face_index != face_index) |
|
{ |
|
hb_face_destroy (cache.face); |
|
cache.face = hb_face_create (cache.blob, face_index); |
|
cache.face_index = face_index; |
|
} |
|
|
|
blob = cache.blob; |
|
face = cache.face; |
|
} |
|
|
|
void |
|
face_options_t::add_options (option_parser_t *parser) |
|
{ |
|
GOptionEntry entries[] = |
|
{ |
|
{"font-file", 0, 0, G_OPTION_ARG_STRING, &this->font_file, "Set font file-name", "filename"}, |
|
{"face-index", 'y', 0, G_OPTION_ARG_INT, &this->face_index, "Set face index (default: 0)", "index"}, |
|
{nullptr} |
|
}; |
|
parser->add_group (entries, |
|
"face", |
|
"Font-face options:", |
|
"Options for the font face", |
|
this); |
|
} |
|
|
|
#endif
|
|
|